paterns_menu: load patern from the selected file

includes/paterns_menu.hpp

@@ -25,7 +25,7 @@ public:
   void display();
   void refresh();
 private:
-  void loadPatern(std::string &path);
+  bool loadPatern(std::string &path);
   bool is_open_ = false;
   std::shared_ptr<ctx> context_ = nullptr;
   std::map<std::string,std::string> paterns_paths_list_;